C. B. TICEHURST : DOWN-PLUMAGE. 189 



BLACKBIRD Turdus merula L. 



Down. Colour. — Greyish white. 



Distribution. — Inner supra-orbital, occipital, humeral, spinal 



and ulnar. 

 Coloration of Mouth. Inside, orange ; no spots. 



WHEATEAR Saxicola oenanthe (L.). 



Down. Colour. — Dark grey. 

 Character. — Moderate length. 



Distribution. — Inner supra-orbital, occipital, humeral, spinal 

 and femoral. It will be noted that there is no ulnar tract, 

 and the spinal tract is a very short one, confined to the 

 middle of the dorsum. 



Coloration of Mouth. Inside, orange ; no spots. 



REDBREAST Erithacus rubecula (L.). 



Down. Colour. — Dull jet-black. 



Distribution. — Inner supra-orbital, occipital, humeral, and 

 spinal. Here also there is no ulnar tract, and the short 

 spinal tract does not reach the sacrum. 



Coloration of Mouth. Inside, orange ; no spots. 



WHITETHROAT Sylvia cinerea Bechst. 



Down. Absent. 



Coloration of Mouth. Inside, yellowish orange ; one 



brownish black spot at the base of the tongue on each 



side. 



LESSER WHITETHROAT Sylvia curruca (L.). 



Down. Absent. 



Coloration of Mouth. Inside, orange. Tongue spots as in 



S. cinerea. 



GARDEN-WARBLER Sylvia hortensis (Bechst.). 



Down. Absent. 



Coloration of Mouth. Inside, deep pink wdth a violet 



tinge ; one .brownish oval spot on each side of the base of 



the tongue. 

 N.B. — The absence of down in these three species of the genus 



Sylvia is noteworthy. 



HEDGE-SPARROW Accentor modularis (L.). 



Down. Colour. — Greyish black. 



Character. — Fairly long, and well developed. 

 Distribution. — Inner supra-orbital, occipital, humeral, spinal, 

 ulnar and femoral. 



